EL34 Electro-Harmonix Matched PairEL34-EH "Electro-Harmonix" (Russia) Sovtek's Mike Matthews says that these will "make your Marshall sing with tone and sustain" and he offers to let anyone who is disappointed give him a boot in the hind end. If I owned a Marshall that would be an offer I couldn't pass up. ;-) Replaces the old EL34-WXT and EL34-G Sovtek used to sell, with improved tone and reliability.
The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a sure way to improve the performance of modern equipment.

According to the technical journal, Vacuum Tube Valley, "The Electro-Harmonix EL34EH is balanced throughout the entire music spectrum. Bass goes deep and is tight, mids are sweet and well defined, and highs are detailed and extended."el34ehmp$52.95

EL34 Electro Harmonix Matched QuadEL34-EH "Electro-Harmonix" (Russia) Sovtek's Mike Matthews says that these will "make your Marshall sing with tone and sustain" and he offers to let anyone who is disappointed give him a boot in the hind end. If I owned a Marshall that would be an offer I couldn't pass up. ;-) Replaces the old EL34-WXT and EL34-G Sovtek used to sell, with improved tone and reliability.
The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a sure way to improve the performance of modern equipment.

According to the technical journal, Vacuum Tube Valley, "The Electro-Harmonix EL34EH is balanced throughout the entire music spectrum. Bass goes deep and is tight, mids are sweet and well defined, and highs are detailed and extended."el34ehmq$104.95

6CA7 EH Matched PAIR BIG BOTTLE TETRODE6CA7 Large Bulb Electro-Harmonix Tube: From Electro- Harmonix, great copy of the old Phillips/Sylvania large-bulb 6CA7 tube. Very useful for folks who like this version of 6CA7 but can't afford the prices NOS go for nowadays. Made in Russia.
These tubes sound especially great, and give a big & beefy output in place of EL34's. They can handle extremely high plate voltages with a full, rich tone that will surprise and delight you! They are tough and rugged, and provide exceptionally rich tone & harmonics in guitar amplifiers, and are also great for high-end hi-fi amps, and will give you wonderful clarity, detail, & punch! Premium Matched Pair.6CA7ehmpBIGBOTTLE$69.95

6CA7 EH Matched QUAD BIG BOTTLE TETRODE6CA7 Large Bulb Electro-Harmonix Tube: From Electro- Harmonix, great copy of the old Phillips/Sylvania large-bulb 6CA7 tube. Very useful for folks who like this version of 6CA7 but can't afford the prices NOS go for nowadays. Made in Russia.
These tubes sound especially great, and give a big & beefy output in place of EL34's. They can handle extremely high plate voltages with a full, rich tone that will surprise and delight you! They are tough and rugged, and provide exceptionally rich tone & harmonics in guitar amplifiers, and are also great for high-end hi-fi amps, and will give you wonderful clarity, detail, & punch! Premium Matched Quad.6CA7ehMQBIGBOTTLE$139.95

6CA7 EH Single Tube BIG BOTTLE TETRODE6CA7 Large Bulb Electro-Harmonix Tube: From Electro- Harmonix, great copy of the old Phillips/Sylvania large-bulb 6CA7 tube. Very useful for folks who like this version of 6CA7 but can't afford the prices NOS go for nowadays. Made in Russia.
These tubes sound especially great, and give a big & beefy output in place of EL34's. They can handle extremely high plate voltages with a full, rich tone that will surprise and delight you! They are tough and rugged, and provide exceptionally rich tone & harmonics in guitar amplifiers, and are also great for high-end hi-fi amps, and will give you wonderful clarity, detail, & punch! Single tube.6ca7singleBIGBOTTLE$34.95